143442373 has 4 divisors (see below), whose sum is σ = 143909920. Its totient is φ = 142974828.

The previous prime is 143442361. The next prime is 143442389. The reversal of 143442373 is 373244341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143442373 is a prime.

It is a super-2 number, since 2×143442373² = 41151428743742258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143442353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233313 + ... + 233926.

It is an arithmetic number, because the mean of its divisors is an integer number (35977480).

Almost surely, 2^143442373 is an apocalyptic number.

It is an amenable number.

143442373 is a deficient number, since it is larger than the sum of its proper divisors (467547).

143442373 is an equidigital number, since it uses as much as digits as its factorization.

143442373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467546.

The product of its digits is 24192, while the sum is 31.

The square root of 143442373 is about 11976.7430046737. The cubic root of 143442373 is about 523.4708313394.

The spelling of 143442373 in words is "one hundred forty-three million, four hundred forty-two thousand, three hundred seventy-three".